Comparison

Eight Sleep vs Carbon Training Centre

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eight Sleep

This intelligent sleep system actively manages your sleep environment by adjusting temperature and elevation. It tracks detailed sleep metrics and provides personalized insights to help you wake up feeling refreshed. The system supports individual sleep profiles for multiple users.

Highlights
  • Personalized temperature control
  • Automatic elevation adjustments
  • Sleep stage tracking
  • Heart rate and HRV monitoring
  • Snoring detection
  • Gentle wake-up alarms
  • Dual sleep profiles
Read full description

Introducing Pod 6. The setup is as effortless as your sleep. Guided Hub setup gets you paired in minutes, a live priming screen decodes your Pod's lights in real time so you're never guessing, and Solo Pod owners get a path built just for them. Your best sleep starts tonight. The Eight Sleep Pod is the intelligent sleep system that gives you up to one hour more of sleep every night. It cools. It heats. It elevates. PERSONALIZED SLEEP WITH AUTOPILOT Autopilot is the intelligence behind the Pod. It adjusts your temperature and elevation to perfect your sleep experience. LEARN ABOUT YOUR SLEEP AND HEALTH View your sleep stages, time slept, heart rate, HRV, and snoring. Plus, receive personalized insights and recommendations. WAKE UP REFRESHED With customizable chest-level vibration and a gradual thermal change, you will wake up gently and feel fully refreshed. TWO SLEEP PROFILES PER POD Autopilot creates a profile for up to two individuals on the same Pod and refines overtime. Have questions? We’re here to help. Email us at support@eightsleep.com. Terms of Use: - www.eightsleep.com/app-terms-conditions/ - www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Carbon Training Centre

Features
Read full description

Carbon Training Centre was created to push Human Development forward. Through 20 years of refinement, we have curated the best practices in Training, Health and Injury Rehabilitation. Our foundation is built on a simple truth: Evolution never stops; and neither should the pursuit of our greatest potential.

Screenshots

Eight Sleep4 screens
Carbon Training Centre4 screens

Verdict

The call

The clearest difference is in-app purchases: Carbon Training Centre at none against Eight Sleep's 4. Carbon Training Centre also leads on iOS requirement (13.0 vs 17.0). Eight Sleep's advantage is update cadence (every 3 days vs every 5 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Eight Sleep sells 4 in-app purchases, starting at $10.00 per month. Carbon Training Centre asks for nothing beyond the download.

UpkeepUpdate frequency

Eight Sleep ships an update every 3 days, Carbon Training Centre every 5 months. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Eight Sleep versus Carbon Training Centre: the parameters behind the verdict, then further details
ParameterEight SleepCarbon Training Centre
PriceFreeFree
Rating4.8 (17K ratings) — better—
Positive reviews28.0% of reviews—
Number of ratings17K — better—
Update frequencyEvery 3 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size245 MB52 MB
Age rating12+4+
DeveloperEight Sleep, IncAD Health & Performance Consulting, LLC

Bugs and requests

Eight Sleep

Reported bugs

5 issues
  • App freezes and loses connection to pod
  • Alarms not working or turning off properly
  • Temperature settings not saving or resetting
  • Sleep data not syncing or displaying accurately
  • Frequent app crashes and performance issues

Requested features

5 requests
  • Apple Watch app integration
  • Offline temperature/alarm controls
  • Customizable sleep tracking and insights
  • Improved alarm snooze/dismiss functionality
  • Nap mode and more sleep schedule flexibility

Carbon Training Centre

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Eight Sleep

Subscriptions4
  • 8+ Standard (Monthly)$10.001 Month
  • 8+ Pro (Monthly)$18.991 Month
  • 8+ Standard (Annual)$96.001 Year
Show 1 more
  • 8+ Pro (Annual)$179.991 Year
None

Carbon Training Centre

No in-app purchases

Questions

Is Eight Sleep free?
Eight Sleep is free to download, with in-app purchases available.
Is Carbon Training Centre free?
Carbon Training Centre is free to download, with no in-app purchases.
Do Eight Sleep or Carbon Training Centre have ads?
Neither Eight Sleep nor Carbon Training Centre shows ads.
Which is updated more often, Eight Sleep or Carbon Training Centre?
Eight Sleep ships an update every 3 days, and Carbon Training Centre every 5 months. Most recently, Eight Sleep was updated on October 19, 2026 and Carbon Training Centre on October 11, 2026.

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